Configuring Pid_Temp; Basic Settings; Introduction - Siemens SIMATIC S7-1200 Function Manual

Using PID_Temp

6.2 Configuring PID_Temp

6.2 Configuring PID_Temp
6.2.1

Basic settings

6.2.1.1

Introduction

Configure the following properties of the "PID_Temp" technology object under "Basic
settings" in the Inspector window or in the configuration window:
● Physical quantity
● Start-up behavior after reset
● Source and input of the setpoint (only in the Inspector window)
● Selection of the process value
● Source and input of the process value (only in the Inspector window)
● Selection of the heating output value
● Source and input of the heating output value (only in the Inspector window)
● Activation and selection of the cooling output value
● Source and input of the cooling output value (only in the Inspector window)
● Activation of PID_Temp as master or slave of a cascade
● Number of slaves
● Selection of the master (only in the Inspector window)
Setpoint, process value, heating output value and cooling output value
You can select the source and enter values or tags for the setpoint, process value, heating
output value and cooling output value in the Inspector window of the programming editor.
Select the source for each value:
● Instance DB:
The value saved in the instance DB is used. The value must be updated by the user
program in the instance DB. There should be no value at the instruction. Can be changed
using HMI.
● Instruction:
The value connected to the instruction is used. The value is written to the instance DB
each time the instruction is called. Cannot be changed using HMI.
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Function Manual, 03/2017, A5E35300227-AC
PID control